Alert archive / Michigan / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 12, NWS Grand Rapids, MI
NWS Grand Rapids, MI issued this severe thunderstorm warning at May 17, 1986, 9:26 PM EDT for Jackson County, Michigan. It was in force for 34 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- May 17, 1986, 9:26 PM EDT (01:26 UTC)
- Expired
- May 17, 1986, 10:00 PM EDT
- In force
- 34 min
- Issued by
- NWS Grand Rapids, MI
- Area
- Whole counties
County Jackson County, MI
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 17, 9:45 PM EDT | Thunderstorm Wind 52 | Jackson, MI |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Detroit, MI (KFNT), launched 00:00Z, 1.4 hours before the alert went out and 97 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 306 J/kg
- Mixed-layer CIN
- -45 J/kg
- Mixed-layer LCL
- 1248 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 133 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, May 17, 3:27 PM EDT, 5 hours 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 325 PM EDT SAT MAY 17 1986 THE PUBLIC HAS REPORTED A POSSIBLE FUNNEL CLOUD A FEW MILES WEST OF GRAND RAPIDS. AT 325 PM WEATHER RADAR INDICATED INTENSE THUNDERSTORMS OVER SOUTHWEST KENT COUNTY. ALL PERSONS SHOULD BE ON THE ALERT FOR POSSIBLE TORNADO DEVELOPMENT AND TAKE COVER IF NECESSARY COOLEY
Special weather statement, May 17, 3:50 PM EDT, 5 hours 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LANSING MI 350 PM EDT SAT MAY 17 1986 ...TORNADO WATCH FOR SOUTH CENTRAL LOWER MICHIGAN TILL 9 PM EDT... AT 345 PM RADAR INDICATED A LINE OF THUNDERSTORMS FROM NEAR THE CITY OF HILLSDALE...IN HILLSDALE COUNTY...TO GRAND RAPIDS MICHIGAN. THE THUNDERSTORMS WERE MOVING EAST NORTHEAST AT 25 MPH. A STRONG THUNDERSTORM WAS 2 MILES SOUTHWEST OF BATTLE CREEK MICHIGAN. ANOTHER STRONG THUNDERSTORM WAS MOVING INTO SOUTHWEST EATON COUNTY NEAR THE CITY OF BELLEVUE. THESE THUNDERSTORMS MAY PRODUCE STRONG WINDS AND VERY HEAVY RAIN AS THEY MOVE EAST NORTHEAST AT 25 MPH. FORTUNE
Special weather statement, May 17, 5:57 PM EDT, 3 hours 29 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 555 PM EDT SAT MAY 17 1986 THE PUBLIC HAS REPORTED PEA SIZED HAIL FALLING IN KENTWOOD, A SOUTHERN SUBERB OF GRAND RAPIDS. WEATHER RADAR INDICATED INTENSE THUNDERSTORMS OVER SOUTHWEST KENT COUNTY. ALL PERSONS IN SOUTHERN KENT COUNTY SHOULD WATCH FOR RAPIDLY CHANGING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS. TORNADO WATCH NUMBER 189 REMAINS IN EFFECT FOR ALL OF SOUTHWEST LOWER MICHIGAN UNTIL 900 PM EDT. KERSY
Special weather statement, May 17, 7:40 PM EDT, 1 hour 46 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE LANSING MI 736 PM EDT SAT MAY 17 1986 ...TORNADO WATCH FOR SOUTH CENTRAL LOWER MICHIGAN TILL 9 PM EDT... SEVERE THUNDERSTORM WARNING FOR CLINTON COUNTY TIL 8PM... AT 735 PM A FUNNEL CLOUD WAS SIGHT 4 MILES E OF FLOWER MOVING TO THE NORTHEAST AT 30 MPH. PERSONS LIVING OR IN THE PATH OF THIS STORM SHOULD TAKE SHELTER IN A REINFORCED BUILDING OR IN AN INTERIOR HALLWAY. SUTTLE
Local storm report, May 17, 8:34 PM EDT, 52 minutes before
STORM REPORT NATIONAL WEATHER SERVICE GRAND RAPIDS MI 835 PM EDT SAT MAY 17 1986 ALL TIMES EDT... 234 VAN BUREN COUNTY, POSSIBLE FUNNEL CLOUD AT LAWERENCE. 403 KENT COUNTY, PEA SIZED HAIL IN CALEDONIA. 440 MONTCALM COUNTY, FUNNEL CLOUD AT CRYSTAL. 549 KENT COUNTY, PEA SIZED HAIL IN KENTWOOD. 605 ALLEGAN COUNTY, 1/2-3/4 INCH HAIL IN THE CITY OF ALLEGAN. 626 IONIA COUNTY, 1/2-3/4 INCH HAIL IN SARANAC, ROTATING WALL CLOUD. 636 KENT COUNTY, 3/8-1/2 INCH HAIL IN CALEDONIA. 638 KENT COUNTY, 1/2 INCH HAIL IN CALEDONIA. 653 IONIA COUNTY, PEA SIZED HAIL. 658 IONIA COUNTY, WALL CLOUD AND HIGH WINDS NEAR CLARKSVILLE. 726 KENT COUNTY, 3/8 INCH HAIL NEAR CANNONSBURG. ALL TIMES ARE TIME C,ALL WAS RECIEVED AT WSO GRR, EVENT OCCURRED 5 TO 10 MINUTES BEFORE CALL WAS RECIEVED. REK
Local storm report, May 17, 9:04 PM EDT, 22 minutes before
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</html>The office that day
Everything else NWS Grand Rapids, MI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 9:03 PM EDT | Tornado Warning | GRR | Hillsdale | 27 min |
| May 17, 9:51 PM EDT | Tornado Warning | GRR | Allegan | 24 min |
Nearby
Severe Thunderstorm Warnings in Michigan, 1986Every severe thunderstorm warning in 1986
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.